Biology WBI11: Cells, Development, Biodiversity and Conservation Topical Past Paper Questions
Edexcel A Level Biology (WBI11) past-paper questions on Cells, Development, Biodiversity and Conservation, free. This topic is frequently examined across 14 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
It was once thought that a red panda and a giant panda were closely related because they have similar adaptations. The photographs show a red panda and a giant panda. (Source: © Andrew Fox / Alamy Stock Photo) (Source: © Ana Flašker / Alamy Stock Photo) (a) One adaptation is an e…
An egg cell is a specialised cell. (a) The acrosome reaction is stimulated when a sperm cell binds to the ZP3 protein on the zona pellucida of an egg cell. Describe the acrosome reaction. (3) (b) When a sperm cell arrives at an egg cell surface it binds to a receptor on the egg c…
The photograph shows a species of fungus growing on a dead tree in a woodland habitat. © www.pqpictures.co.uk / Alamy Stock Photo Wood contains a high proportion of lignin and cellulose. Fungi can break down molecules in wood by releasing extracellular enzymes. (a) Describe the r…
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